Manufacturing of chamotte refractory brick from clay sources in Vietnam

Abstract

The article studies the use of refractory materials from natural clay and kaolin sources in the Southern Central - Central Highlands, Vietnam to manufacture chamotte refractory bricks meeting the need for localization of refractory products. Methods for study of material composition such as SEM, Energy Dispersive X-Ray, X-Ray Diffraction, DTA-TG, and methods for study of physico-mechanical properties of chamotte refractory bricks are used. As a result, the chamotte refractory brick manufacturing process from natural clay and kaolin sources has been developed. The physico-mechanical properties of chamotte fire bricks after firing have met the refractory requirement of 1580°C. This product has also contributed to replace the imported materials for the sector of general refractory materials in Vietnam.